Research article
Vol 2 No 2 (2008): Volume 2, Number 2, 2008
Sifat-sifat penyalaan dan pembakaran briket biomassa, briket batubara dan arang kayu
Program Studi Teknik Kimia, Universitas Ahmad Dahlan Yogyakarta Jl. Prof. Dr.Soepomo, Yogyakarta
Abstract
In general, combustion of solid material consists of several steps including heating, drying, de-volatilization and burning of the charcoal. The factors that determine combustion characteristics of briquettes are the rate of combustion, heating value, density and amount of pollutants or volatile compounds produced. The present work aimed at determining combustion characteristics of various kinds of briquettes from biomass, wood charcoal and coal including the rate of combustion, duration of briquettes burn to ashes, the initial ignition, amount of smoke or volatile compounds produced, heating value and duration for boiling one liter of water. The experimental work was performed by burning 250 grams of each briquette. The results showed that coconut shell had the longest combustion duration (116 minutes) with a combustion rate of 126.6 grams/second. In comparison with other biomass briquettes and wood choarcoal, coconut shell had the highest heating values of 5,779.11 cal/gram which was close to heating value of coal briquette (6,058 cal/gram). All briquettes studied in the present work showed a reasonable duration and needed about 5 – 7 minutes to boil one litter of water.
References
Amin, S., 2000. "Penelitian berbagai jenis kayu limbah pengolahan untuk pemilihan Bahan Baku briket Arang," Jurnal Sains dan Teknologi Indonesia, 2, 41-46.
Borman, G.L. dan Ragland, K.W., 1998. "Combustion Engineering," McGrawHill Publishing Co, New York.
Bahillo, A., Cabanillas, P.A., Gayan, L.P., De Diego, L., dan Adanez, J., 2003. "Co-combustion of coal and biomass in FB boilers: model validation with experimental results from CFB pilot plant," Energy Agency-Fluidized Bed Conversion.
Hartoyo, A. dan Roliadi H., 1978. "Percobaan Pembuatan Briket Arang dari Lima Jenis Kayu," Laporan Penelitian hasil Hutan, Bogor.
Levenspiel, O., 1972. "Chemical Reaction Engineering," John Wiley & Sons, 2nd ed., Singapore.
Pengmei Lv, Chang, J., Wang, T., dan Wu, C. A., 2004. "Kinetic Study on Biomass Fast Catalytic Pyrolysis," Energy & Fuels, 18, 1865-1869.
Saptoadi, H., 2004. "The best composition of coal-biomass briquettes," A two-day Collaboration Workshop on Energy, Environmental, and New Trends in Mechanical Engineering, Department of Mechanical Engineering Brawijaya University, Keio University.
Syamsiro, M. dan Harwin Saptoadi, 2007. "Pembakaran Briket Biomassa Cangkang Kakao: Pengaruh Temperatur Udara Preheat," Seminar Nasional Teknologi 2007 (SNT 2007), Yogyakarta.